I am trying to play an audio file from a remote URL. The code works alright but the problem is when I tap on the play button, the app hangs for sometime before the audio plays. My code is shown below. How can I optimise this for a better experience.
if(!isDraft)
{
toPlay = URL+"/getFile/"+code+"_audioFile";
}
final Media mp = MediaManager.createMedia(toPlay, false);
f.addComponent("Center", new MediaPlayer(mp));
mp.play();
f.getToolbar().setBackCommand("", ed -> {
mp.pause();
mp.cleanup();
caseForm.showBack();
Related
I am building a chat app. I am trying to add support for videos.
the URL for the video is https://api.twilio.com/2010-04-01/Accounts/AC5c869939f6863233a73ac697207c3697/Messages/MMf01fb40e39c41feafbc0967590f161e8/Media/MEbd3e3d9a0c2be95e01de341889e8cfbb
Container container = new Container(new BorderLayout());
Media video = com.codename1.media.MediaManager.createMedia(url, true); // url is the url above
video.setNativePlayerMode(true);
MediaPlayer mp = new MediaPlayer(video);
//place the media player in the container
container.add(BorderLayout.CENTER, mp);
Component component = Container.encloseIn(new FlowLayout(Container.RIGHT), container);
When I make a debug build and put this on my iPhone, I just get a black box where I would expect the video player to be.
In the simulator, I got playback controls, but no video either.
What am I doing incorrectly?
Something like this should work on the device although the simulator might be a bit flaky:
Form hi = new Form("Player", new BorderLayout());
try {
Media video = MediaManager.createMedia("https://api.twilio.com/2010-04-01/Accounts/AC5c869939f6863233a73ac697207c3697/Messages/MMf01fb40e39c41feafbc0967590f161e8/Media/MEbd3e3d9a0c2be95e01de341889e8cfbb", true);
hi.add(CENTER, video.getVideoComponent());
video.setNativePlayerMode(true);
hi.show();
hi.addShowListener(e -> video.play());
} catch(IOException err) {
Log.e(err);
hi.add(CENTER, "Failed to load video");
hi.show();
}
Notice a few things:
the simulator doesn't support HTTPS URL's for media due to limitations of JavaFX. It doesn't support some video stream types and might not support 3gp properly
iOS requires an HTTPS URL
I placed the video component in the center of the border layout in a form. This forces a specific size for the video which is important.
3gp is not supported. I convert the video to mp4 and supply the url to that file to the Media Manager and it works fine.
I am trying to convince a friend of mine to use CN1 as his dev platform for mobile apps. One of the challenges he has brought up is the ability to stream live audio from a radio station using a CN1 app.
I have had a look at the docs and I can see examples of loading media files that are already on the phone, but I cannot see an example of where you point it at a URL and stream live audio.
As you have probably guessed he is interested in developing radio apps for remote radio stations that don't already have their own
Is it possible to do this in CN1?
That's quite possible with CN1 and number of developers have done that in the past.
You can use MediaManager and point it to your remote streaming URL.
Below works for playing an audio file from remote URL and could work for streaming:
Form radio = new Form(new BorderLayout());
Display.getInstance().scheduleBackgroundTask(() -> {
try {
Media audio = MediaManager.createMedia(streamingUrl, false);
audio.prepare();
Display.getInstance().callSerially(() -> {
final MediaPlayer player = new MediaPlayer(audio);
player.setAutoplay(true);
audio.setNativePlayerMode(false);
radio.add(BorderLayout.CENTER, player);
radio.revalidate();
});
} catch (IOException err) {
Log.e(err);
ToastBar.showErrorMessage("Error streaming audio: " + err);
}
});
radio.show();
To avoid this error "Video Playing is not supported on this platform", you have to put true to isVidio parameter like this when handling video stream.
Media audio = MediaManager.createMedia(streamingUrl, true);
I have an app which I made over two years ago which has a list of videos. When one of the list buttons is clicked, the media played full screen. This was working perfectly OK on Android (I have't tried other platforms) until I resubmitted it to the build server on 31-07-2016. After this I noticed that the videos were no longer working full screen.
This month, I resubmitted the app to the build server and now there are a couple of things that don't work. The most noticeable feature is that the video is stretched in portrait mode to fill the form (even without setFullScreen()). The other issue I have noticed is that if I click the back button and play another video, I get the new video and the old video still playing at the side / corner of the screen. I have tried pause() and cleanup() but they seem to have no effect. I have tried adding the Media directly to a Container and using MediaPlayer and found the same issues with both.
try {
((com.codename1.ui.layouts.BorderLayout) getLayout()).setCenterBehavior(com.codename1.ui.layouts.BorderLayout.CENTER_BEHAVIOR_CENTER_ABSOLUTE);
Media media = createMedia(currentExternalContent.getIs(), "video/m4v");
Component videoComponent = media.getVideoComponent();
Container videoContainer = new Container(new com.codename1.ui.layouts.BorderLayout());
videoContainer.addComponent(BorderLayout.CENTER, videoComponent);
addComponent(BorderLayout.CENTER, videoContainer);
revalidate();
media.play();
} catch (IOException ex) {
// Dialog.show("Catch", ex.getMessage(), "OK", "Cancel"); // gives 'read failed: EBADF (Bad file descriptor)'
}
}
I have created an app for video demonstration using Codename one. I'm Facing some challenges when I'm running the app on my Google Android Phone as it does not allow a full screen view and also after the video is done playing, it does not go back or restart the video again. Another problem was that I had a button at the bottom at the borderlayout and each time I click the button, it corrupts the video and the video won't play anymore. These are codes used for my demonstration app Demonstration App 1, Demonstration App2 .
#Override
protected void postMain1(Form f) {
final MediaPlayer mp = findMpPresent();
try {
InputStream is = Display.getInstance().getResourceAsStream(getClass(), "/sbuda.mp4");
if (is != null) {
mp.setDataSource(is, "video/mp4", null);
} else {
}
} catch (IOException ex) {
ex.getMessage();
}
}
This is a bit unclear since I can't see the stop/start etc with a GUI builder application.
You can use native on-device controls for playback using setFullScreen. Notice that this works nicely on the device but has no equivalent on the simulator.
Once playback is finished the media no longer exists as your input stream has been depleted. You will need to create a new Media object. You can use the completion callback (the Runnable argument) to detect the end of the media.
I am trying to find solution to play YouTube video from http stream. Not as embedded player or via website. The reason of that as I need to play some clips locally in app that prevented to be embedded.
So the first task to obtain http stream is easy to solve, e.g. using YouTubeExtractor. For example from this youtube url
https://www.youtube.com/watch?v=31crA53Dgu0
YouTubeExtractor extracts such url for downloading video. As you can see there is no piece of path to concrete .mp4 or .mov file. There is also binding to IP, so the url won't work on your side.
https://r3---sn-puu8-3c2e.googlevideo.com:443/videoplayback?sparams=dur,gcr,id,initcwndbps,ip,ipbits,itag,lmt,mime,mm,mn,ms,mv,pl,ratebypass,requiressl,source,upn,expire&source=youtube&initcwndbps=3147500&pl=19&upn=oYYkSNBwoc8&fexp=9412913,9416126,9416891,9422596,9428398,9429016,9431012,9431364,9431901,9432206,9432825,9433096,9433424,9433623,9433946,9434085,9435504,9435703,9435937&id=o-AGanAaajMgOmp4VrXIwo9jewJnqlsvZecDxCcRpSN3lS&expire=1462821352&gcr=ua&ip=12.34.56.149&lmt=1458705532562546&ms=au&mt=1462799507&mv=m&dur=217.849&sver=3&itag=22&key=yt6&mn=sn-puu8-3c2e&mm=31&ipbits=0&mime=video/mp4&ratebypass=yes&requiressl=yes&signature=A142619EBA90D00CC46FF05B9CF1E3469B0EF196.072B532670A4D833582F94CF9C46F1F7D298F230&fallback_host=tc.v1.cache5.googlevideo.com
private string ExtractVideoUrl(string youtubeUrl)
{
IEnumerable<VideoInfo> videoInfos = DownloadUrlResolver.GetDownloadUrls(youtubeUrl, false);
var video = videoInfos.First();
if (video.RequiresDecryption)
{
DownloadUrlResolver.DecryptDownloadUrl(video);
}
return video.DownloadUrl; // videoInfos.First().DownloadUrl;
}
Then to download video this lib uses the code below. The interesting moment is in reading stream and writing to file the contents of youtube video.
var request = (HttpWebRequest)WebRequest.Create(this.Video.DownloadUrl);
if (this.BytesToDownload.HasValue)
{
request.AddRange(0, this.BytesToDownload.Value - 1);
}
// the following code is alternative, you may implement the function after your needs
using (WebResponse response = request.GetResponse())
{
using (Stream source = response.GetResponseStream())
{
**// HOW to Play source stream???**
using (FileStream target = File.Open(this.SavePath, FileMode.Create, FileAccess.Write))
{
var buffer = new byte[1024];
bool cancel = false;
int bytes;
int copiedBytes = 0;
while (!cancel && (bytes = source.Read(buffer, 0, buffer.Length)) > 0)
{
target.Write(buffer, 0, bytes);
....
So the general question is how to play video from that open stream? For example Chrome, Firefox and KMPlayer are doing this easily. The browsers generate a simple page with video tag, so it will be trivial to manage the player through JS. But...internal WebBrowser control can't, it suggests to download file. I tried CEFSharp (Chrome Embeded Framework) and no luck there. Maybe anybody know good video player WPF library which can streaming video? I also tried VLC.wpf and Shockwave Flash, but still unhappy with this extracted url. A lot of searching but results insufficient for now.
After 2 days researching I found the solution of how to play youtube video url directly from WPF application.
Some notes before:
WebBrowser component for WPF and the same for WinForms does not support HTML5. So no way to play video using <video> tag there
Chrome Embeded Framework (CEF)and its CEFSharp wrapper does not support <audio> and <video> tags by default. As I found on SO it is needed to recompile CEF to support audio and it seems video too. --enable-multimedia-streams option didn't work on my side at all to play video
WPF MediaElement component does not support playing video from streams. However there are workaroung exists, they are unsuitable to play youtube url's.
No .NET media player found which could play video from Stream object returned by HttpWebRequest
So the solution is in using GeckoFx webbrowser which is also available via nuget. As it is WinForms based component it is needed to use WinFormsHosting to use it in WPF. Final solution is:
<xmlns:gecko="clr-namespace:Gecko;assembly=Geckofx-Winforms">
....
<WindowsFormsHost Width="400" Height="300" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" >
<gecko:GeckoWebBrowser x:Name="_geckoBrowser"/>
</WindowsFormsHost>
And simple code to use:
public void PlayVideo(string videoId)
{
var url = string.Format("https://www.youtube.com/watch?v={0}", videoId);
var videoUrl = ExtractVideoUrl(url);
_geckoBrowser.Navigate(videoUrl);
}
GeckoFx is depeneded on XulRunner runtime sdk. It is installed with nuget package though. One cons in this solution is the size of all app dependencies increased for over +70mb.